Merge pull request dipanjanS#4 from ambientlight/patch-1

Graphviz code for Fig 3-4 generation

Author: dipanjanS

Chapter-3/dependency_parsing.py

@@ -41,8 +41,13 @@
 dep_tree = [parse.tree() for parse in result][0]
 print dep_tree
 dep_tree.draw()
-                           
-                          
+
+# generation of annotated dependency tree shown in Figure 3-4
+from graphviz import Source
+dep_tree_dot_repr = [parse for parse in result][0].to_dot()
+source = Source(dep_tree_dot_repr, filename="dep_tree", format="png")
+source.view()
+             
 import nltk
 tokens = nltk.word_tokenize(sentence)
 
@@ -61,4 +66,4 @@
 tree = res[0] 
 print tree
 
-tree.draw()                          
+tree.draw()